Örugg notkun kælisventla
Skiptingaraðgerðir ýmissa loka eru aðalverkin í rekstri kæliskerfisins. Hlutverk lokans er að stjórna og leiðbeina flæði og stefnu kælimiðils í kerfinu, skera burt og stjórna tengingunni milli búnaðarins og búnaðarins eða búnaðarins og umheimsins. Óviðeigandi notkun lokans getur valdið óöruggum þáttum eða valdið slysum, þannig að notkun lokans verður að fylgja strangar reglur til að forðast slys. Köldu geymsluventlarnir innihalda aðallega hnattloka, stækkunarloka og öryggisventla eftir notkun þeirra. Það eru tvær tegundir af hnöttum lokar: beinir - í gegnum lokana og hornventilana. Örugg notkun lokans ætti að vinna eftirfarandi vinnu:
1. The operator must be sure about the operation of the valve, and do not accidentally open other valves to cause human accidents.
2. When opening the suction valve of the compressor, the discharge valve of the condenser or the accumulator, it must be carried out slowly, and sometimes it should be started and stopped alternately to avoid the wet stroke accident of the compressor due to the excessively fast opening speed.
3. During the opening process of each valve, especially when it is close to the maximum opening, be sure to slowly pull the handwheel, and do not use excessive force, so as to avoid the phenomenon that the valve core is caught by the valve body and the valve is pulled off. When the valve is at the maximum opening (limited to the handwheel can not move), the handwheel should be rotated one or two times.
4. The operator should pay attention to the proper force during the closing of each valve, and not use too much force, so as not to damage the valve.
Verður að vita það! Örugg notkun kælisventla
5.For pipes and equipment with liquid refrigerant, it is strictly forbidden to close the valves at both ends at the same time, so as to avoid the expansion of the liquid due to the absorption of external heat and the expansion of the liquid, which will lead to the accident of ammonia leakage in the pipe or equipment. Under normal circumstances, most liquid bursts crack at the valve. The correct way to prevent liquid explosion is to evacuate the liquid in the tube before closing the liquid tube valve. Under special circumstances, when the liquid pipe cannot be evacuated, only the valve at one end of the liquid pipe should be closed, so that the valve connected to the equipment at the other end is in the open state. If the compressor is completely stopped, the supply of the liquid reservoir should be closed first. Liquid valve, wait for the system and liquid pipe to be evacuated, and then close the main liquid supply valve to the regulating station.
Í kælikerfinu skal sérstaklega fylgjast með hlutunum þar sem vökvasprenging getur orðið. Þessir hlutar eru: vökvaleiðsla milli eimsvala og lónsins, leiðsla frá háu - þrýstingsgeymi að þenslaloki, vökvaleiðsla með lokaða - lokum í báðum endum, vökvastig mál háþrýstibúnaðarins - og vökvinn milli ammoníakílátsins Jafnvægispípa, dreifistöð fyrir vökva, leiðslan undir útblástursloki hringrásargeymisins að tvöföldum soginu ammoníak, leiðsla leiðslu vökva ammoníakdæla, leiðslan frá lóninu til ammoníaks frárennslis, og allar leiðslur sem geta valdið sprengingu í vökva.
Verður að vita það! Örugg notkun kælisventla
6. Valves that do not open and close for a long time should be regularly checked for opening and closing flexibility.
7. The safety valve in the refrigeration system must be calibrated once a year, and the safety net in question should be repaired or replaced in time.
8. Attach the red and yellow opening and closing plates made of colored steel plates to the handwheel of the valve to avoid misoperation as much as possible.
